git.delta.rocks / unique-network / refs/commits / 4b0f7ea4ecce

1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617import {IKeyringPair} from '@polkadot/types/types';1819import {itEth, expect, usingEthPlaygrounds} from './util/playgrounds';2021describe('EVM payable contracts', () => {22  let donor: IKeyringPair;2324  before(async function() {25    await usingEthPlaygrounds(async (_, privateKey) => {26      donor = privateKey('//Alice');27    });28  });2930  itEth('Evm contract can receive wei from eth account', async ({helper}) => {31    const deployer = await helper.eth.createAccountWithBalance(donor);32    const contract = await helper.eth.deployCollectorContract(deployer);3334    const web3 = helper.getWeb3();3536    await web3.eth.sendTransaction({from: deployer, to: contract.options.address, value: '10000', gas: helper.eth.DEFAULT_GAS});3738    expect(await contract.methods.getCollected().call()).to.be.equal('10000');39  });4041  itEth('Evm contract can receive wei from substrate account', async ({helper}) => {42    const deployer = await helper.eth.createAccountWithBalance(donor);43    const contract = await helper.eth.deployCollectorContract(deployer);44    const [alice] = await helper.arrange.createAccounts([10n], donor);4546    const weiCount = '10000';4748    // Transaction fee/value will be payed from subToEth(sender) evm balance,49    // which is backed by evmToAddress(subToEth(sender)) substrate balance50    await helper.eth.transferBalanceFromSubstrate(alice, helper.address.substrateToEth(alice.address), 5n);515253    await helper.eth.sendEVM(alice, contract.options.address, contract.methods.giveMoney().encodeABI(), weiCount);5455    expect(await contract.methods.getCollected().call()).to.be.equal(weiCount);56  });5758  // We can't handle sending balance to backing storage of evm balance, because evmToAddress operation is irreversible59  itEth('Wei sent directly to backing storage of evm contract balance is unaccounted', async({helper}) => {60    const deployer = await helper.eth.createAccountWithBalance(donor);61    const contract = await helper.eth.deployCollectorContract(deployer);62    const [alice] = await helper.arrange.createAccounts([10n], donor);6364    const weiCount = 10_000n;6566    await helper.eth.transferBalanceFromSubstrate(alice, contract.options.address, weiCount, false);6768    expect(await contract.methods.getUnaccounted().call()).to.be.equal(weiCount.toString());69  });7071  itEth('Balance can be retrieved from evm contract', async({helper, privateKey}) => {72    const FEE_BALANCE = 10n * helper.balance.getOneTokenNominal();73    const CONTRACT_BALANCE = 1n * helper.balance.getOneTokenNominal();7475    const deployer = await helper.eth.createAccountWithBalance(donor);76    const contract = await helper.eth.deployCollectorContract(deployer);77    const [alice] = await helper.arrange.createAccounts([20n], donor);7879    const web3 = helper.getWeb3();8081    await web3.eth.sendTransaction({from: deployer, to: contract.options.address, value: CONTRACT_BALANCE.toString(), gas: helper.eth.DEFAULT_GAS});8283    const receiver = privateKey(`//Receiver${Date.now()}`);8485    // First receive balance on eth balance of bob86    {87      const ethReceiver = helper.address.substrateToEth(receiver.address);88      expect(await web3.eth.getBalance(ethReceiver)).to.be.equal('0');89      await contract.methods.withdraw(ethReceiver).send({from: deployer});90      expect(await web3.eth.getBalance(ethReceiver)).to.be.equal(CONTRACT_BALANCE.toString());91    }9293    // Some balance is required to pay fee for evm.withdraw call94    await helper.balance.transferToSubstrate(alice, receiver.address, FEE_BALANCE);95    // await transferBalanceExpectSuccess(api, alice, receiver.address, FEE_BALANCE.toString());9697    // Withdraw balance from eth to substrate98    {99      const initialReceiverBalance = await helper.balance.getSubstrate(receiver.address);100      await helper.executeExtrinsic(receiver, 'api.tx.evm.withdraw', [helper.address.substrateToEth(receiver.address), CONTRACT_BALANCE.toString()], true);101      const finalReceiverBalance = await helper.balance.getSubstrate(receiver.address);102103      expect(finalReceiverBalance > initialReceiverBalance).to.be.true;104    }105  });106});